I used to have Hawlucha in my party, but I'm preparing for the 8th gym and I need a Fighting pokémon that isn't vulnerable to Ice, and that means going back to Lucario. That is, the one I caught and evolved myself, not Korrina's.
It has Rock Smash (required for a little while, will replace), Aura Sphere, Swords Dance and Metal Claw. I know that's suboptimal which is why I'm asking. Once I get out of the cave that requires Rock Smash, what moves should I give my Lucario for the gym?